【单选题】Dr. Smith was always ________ the poor and the sick, often providing them with free medical care.
【判断题】志贺氏菌能发酵葡萄糖产酸产气,也能分解蔗糖、水杨素和乳糖。
【单选题】Tom’s mother asks Dr. Williams to __________.
B.
take Tom to the hospital
D.
come to have dinner with them
【判断题】志贺氏菌能发酵葡萄糖产酸产气,也能分解蔗糖、水杨素和乳糖。